Cemar's operating and financial results for 1Q12 are presented. Key highlights include: - Cemar's billed energy volume increased 12.2% to 1,119 GWh in 1Q12. Energy losses decreased 0.9 percentage points to 20.7%. - Net operating revenues increased 32.1% to R$545.8 million in 1Q12, reflecting a 30.5% rise for Cemar. EBITDA rose 17.9% to R$132.5 million. - Net income was R$48.1 million, down 40.9% from the prior year, while consolidated investments increased 47.4% to R$118.5 million

1. OPERATING AND
FINANCIAL RESULTS
1Q12

2. 22
Agenda
► Highlights
► Operating Results
► Introduction
► Financial Results
► Updates on Geramar and Vila Velha

3. 3
► Highlights
► Operating Results
► Financial Results
► Introduction
Agenda
► Updates on Geramar and Vila Velha

4. 4
Introduction
Presentation of Operating and Financial Information
► The financial information contained herein is presented in consolidated figures, pursuant to Brazilian
Corporate Law, based on revised financial information. The consolidated financial information
represents: i) 100% of CEMAR’s results, excluding 34.89% related to minority interests, ii) 25% of
Geramar’s results and iii) 100% of Equatorial Soluções’ results, which in turn consolidated 100% of Sol
Energias’ results, excluding 49% of minority interest before Net Income.
► The operating information presented herein consolidates 100% of CEMAR’s results and 25% of
Geramar’s results.
► The following information was not reviewed by the independent auditors: i) non-financial information
relating to CEMAR, Light and the PLPT (Programa Luz para Todos - Light for All Program); ii) pro forma
information and its comparison with the results presented in the period; and iii) management
expectations regarding the future performance of the Companies.

5. 5
► Highlights
► Operating Results
► Introduction
► Financial Results
Agenda
► Updates on Geramar and Vila Velha

6. 6
Operating Highlights
► CEMAR’s billed energy volume totaled 1,119 GWh in 1Q12, 12.2% more than in 1Q11.
► CEMAR’s last-12-month energy losses totaled 20.7% of required energy in 1Q12, 0.9 p.p. less than the
1Q11 ratio.
► CEMAR’s last-12-month DEC and FEC indices came to 23.7 hours and 12.1 times, respectively, in
1Q12, 14.9% and 3.3% up on the 1Q11 figures.
► In 1Q12, we concluded the acquisition of 50% of Vila Velha Termoelétricas Ltda., pre-operational
company, responsible for the construction and management of thermal plants in Espírito Santo.

7. 7
► Net operating revenues (NOR) totaled R$545.8 million in 1Q12, 32.1% up on 1Q11, reflecting a 30.5%
increase by CEMAR.
► 1Q12 EBITDA came to R$132.5 million, 17.9% higher than the amount reported in 1Q11.
► Net income totaled R$48.1 million in the quarter, 40.9% down on the adjusted amount reported in the same
period last year.
► Equatorial’s consolidated investments amounted to R$118.5 million in 1Q12, 47.4% up year-on-year. In
CEMAR (excluding direct investments in the Light For All Program), total capex amounted to R$73.8 million,
73.3% growth. Light For All Program investments totaled R$44.5 million.
► From January to April, 2012, Geramar has contracted R$246.5 million in long term loans, being R$163.0
million from FDA/BASA, and R$83.5 million from BNB.
Financial Highlights

8. 8
► Highlights
► Operating Results
Agenda
► Introduction
► Financial Results
► Updates on Geramar and Vila Velha

9. 9
► CEMAR: 1Q12 energy sales moved up by 12.2%, reaching 1,119 GWh.
CEMAR – Electricity Sales Volume
Electricity Consumption per Segment (GWh)
Energy Balance (GWh)
CONSUMPTION SEGMENTS * (GWh) 1Q11 4Q11 1Q12 Chg.
Residential 467.7 550.0 529.1 13.1%
Industrial 102.1 110.5 112.6 10.3%
Commercial 198.1 233.8 223.8 12.9%
Other 229.7 266.6 254.0 10.6%
TOTAL 997.6 1,160.8 1,119.5 12.2%
(*) Does not consider own consumption and sales to CEPISA.
ENERGY BALANCE (GWh) 1Q11 4Q11 1Q12 Chg.
Required Energy 1,258 1,491 1,395 10.9%
Sold Energy (*) 999 1,161 1,120 12.1%
Losses 259 330 275 6.2%
(*) Considers sale to the segments, own consumption and sales to CEPISA

10. 10
Distribution – Energy Losses in CEMAR
Non-technical Losses over Low-Voltage Market
(last 12 months)
30.4%
29.0%
30.6% 29.9% 30.0%
28.7%
27.3%
15.7% 15.2% 15.4% 15.3% 15.3% 15.2%
23.7%
21.5%
19.5%
15.7% 15.9%
4Q07 1Q08 2Q08 3Q08 4Q08 1Q09 2Q09 3Q09 4Q09 1Q10 2Q10 3Q10 4Q10 1Q11 2Q11 3Q11 4Q11 1Q12
Non-technical Losses
18.9%
Regulatory Target
(from Aug-11 until Jul-12)
Total Losses over Required Energy
(last 12 months)
28.7%
28.1%
28.9% 28.6% 28.9% 28.5% 28.1%
22.2% 22.0%
21.6% 21.4% 21.2% 21.0% 20.7%
26.4%
25.2%
24.2%
22.2%
4Q07 1Q08 2Q08 3Q08 4Q08 1Q09 2Q09 3Q09 4Q09 1Q10 2Q10 3Q10 4Q10 1Q11 2Q11 3Q11 4Q11 1Q12
Total Losses
23.1%
Regulatory Target
(from Aug-11 until Jul-12)

11. 11
DEC (hours) FEC (times)
Distribution – DEC and FEC (Last 12 months)
► CEMAR: In 1Q12, the DEC and FEC rates increased respectively 14.9% and 3.3% over the same quarter last year.
23.7
20.6
1Q11 1Q12
14.9% 11.7
12.1
1Q11 1Q12
3.3%

12. 12
► Highlights
► Operating Results
Agenda
► Introduction
► Financial Results
► Updates on Geramar and Vila Velha

13. 13
Quaterly Results
► In 1Q12, EBITDA totaled R$132.5 million, up 17.9% over the amount recorded in 1Q11.
► Net Income for the quarter was R$48.1 million, an increase of 40.9% compared to the same amount of the previous year.
112.3
132.5
1Q11 1Q12
17.9%
34.1
48.1
1Q11 1Q12
40.9%
EBITDA Net Income

14. 14
Debt: Schedule of Gross Debt Maturities
Consolidated Gross Debt
(100% CEMAR + 25% Geramar)
1,271.3
382.1
169.1
162.7
155.5
104.5
297.5
108.2
-
-
-
-
91.5
16.7
Gross Debt Short Term 2013 2014 2015 2016 After 2016
CEMAR
Geramar

15. 15
100% CEMAR + 25% Geramar
Net Debt - Consolidated
Net Debt (R$MM)(*) and Net Debt/ EBITDA
(Last 12 months)
Net Debt Reconciliation (R$MM)
1,082.6
752.8
1,002.4974.6994.2
2.02.1 2.0 2.0
1.5
1Q11 2Q11 3Q11 4Q11 1Q12
278.2
1,082.6
1,379.6
18.7
Gross Debt Net
Regulatory
Asset
Cash Net Debt

16. 16
65.11% CEMAR + 25% Geramar
Net Debt – Pro-rata
Net Debt (R$MM) and Net Debt/ EBITDA
(Last 12 months)
Net Debt Reconciliation (R$MM)
735.0
494.4
681.7661.5674.7
2.0 2.0 2.1
1.5
2.1
1Q11 2Q11 3Q11 4Q11 1Q12
188.8
735.0
936.0
12.2
Gross Debt Net
Regulatory
Asset
Cash Net Debt

17. 17
► CEMAR: In the 1Q12, total capex reached R$118.4 million, of which R$73.8 million are own capex and R$44.5 million regarding
the Light for All Program (PLPT).
► Ever since the conclusion of the construction of its plants in 1Q10, Geramar has only maintenance capex.
Capex - Equatorial
INVESTMENTS (R$MM) 1Q11 4Q11 1Q12 Chg.
CEMAR
Own (*) 42.6 141.3 73.8 73.3%
Light For All Program 37.7 50.1 44.5 18.2%
Total 80.3 191.4 118.4 47.5%
Geramar
Generation 0.2 0.1 0.2 2.2%
TOTAL 80.4 191.5 118.5 47.4%
(*) Including indirect Light For All Program investments

18. 18
► Highlights
► Operating Results
Agenda
► Introduction
► Financial Results
► Updates on Geramar and Vila Velha

19. Vila Velha / Geramar
► UTE Vila Velha: In 1Q12, we concluded the acquisition of 50% of Vila Velha Termoelétricas Ltda., pre-operational company,
responsible for the construction and management of thermal plants in Espírito Santo.
► Geramar: From January to April, 2012, Geramar has contracted R$246.5 million in long term loans, being R$163.0 million from
FDA/BASA, and R$83.5 million from BNB.

20. 20
Eduardo Haiama
CFO and IRO
Thomas Newlands
Investor Relations
Telephone 1: +0 55 (21) 3206-6635
Telephone 2: +0 55 (21) 3217-6607
Email: ir@equatorialenergia.com.br
Website: http://www.equatorialenergia.com.br/ir
Contacts

21. 21
• This presentation may contain forward-looking statements, which are subject to risks and uncertainties, as they were based on the
expectations of Company’s management and on available information. These prospects include statements concerning the Company’s
current intentions or expectations for our clients; this presentation will also be available at our website www.equatorialenergia.com.br/ir and
in the IPE system of the Brazilian Securities and Exchange Commission (CVM).
• Forward-looking statements refer to future events which may or may not occur. Our future financial situation, operating results, market share
and competitive positioning may differ substantially from those expressed or suggested by said forward-looking statements. Many factors
and values that can establish these results are outside Company’s control or expectation. The reader/investor is advised not to completely
rely on the information above.
• The words “believe", “can", “predict", “estimate", “continue", “anticipate", “intend", “forecast" and similar words, are intended to identify
estimates, which refer only to the date on which they were expressed. Hence, the Company has no obligation to update said statements.
• This presentation does not constitute any offering, invitation or request of subscription offer or purchase of any marketable securities. And,
this statement or any other information herein, does not constitute the basis for any contract or commitment of any kind.
Disclaimer